Power problems - BladeCenter HX5

Use this information to diagnose and resolve power problems for the blade server.

IBM continually updates the support website with tips and techniques that you can use to resolve any problems that you might be having with the BladeCenter HX5 blade server. Go to the BladeCenter support search website and search for the terms http://www.ibm.com/search/csass/search?sn=mh&q=7872%20retain%20tip%20power&lang=en&cc=us&en=utf to see if any service bulletins have been generated.

Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

See Parts listing - BladeCenter HX5 to determine which components are CRUs and which components are FRUs. If an action step is preceded by "(Trained service technician only)," that step must be performed only by a trained service technician.
Symptom	Action
The power button does not work.	Reseat the control-panel connector. See Blade server controls and LEDs. (Trained service technician only) Replace the system-board assembly. See Removing the system-board assembly - BladeCenter HX5 and Installing the system-board assembly - BladeCenter HX5.
The blade server does not turn on.	Check the function of the shared BladeCenter chassis resources. See Solving shared BladeCenter resource problems. Make sure that the power-on LED on the blade server control panel is flashing slowly. See Blade server controls and LEDs. If the power LED is flashing rapidly and continues to do so, the blade server is not communicating with the advanced management module; reseat the blade server. See Removing the blade server from the BladeCenter chassis and Installing a blade server in a BladeCenter chassis. If the power LED is off, the blade server bay is not receiving power, the blade server is defective, or the operator control panel is loose or defective. See Removing the blade server from the BladeCenter chassis and Installing a blade server in a BladeCenter chassis. In addition, see Removing the control panel and Installing the control panel. Check the power-management policies in the operating system for the blade server. See the Advanced Management Module User's Guide for more information. Check the advanced management module event log of the corresponding blade server for an error that is preventing the blade server from turning on. See Event logs. Reseat the blade server. See Removing the blade server from the BladeCenter chassis and Installing a blade server in a BladeCenter chassis. If you just installed a device in the blade server, remove it and restart the blade server. If the blade server now starts, you might have installed more devices than the power to that blade server bay supports. (Trained service technician only) If you tried another blade server in the blade server bay when you check the function of the shared BladeCenter chassis resources and the other blade server worked, replace the system-board assembly. See Removing the system-board assembly - BladeCenter HX5 and Installing the system-board assembly - BladeCenter HX5. See Solving undetermined problems.
The blade server turns off for no apparent reason.	Check the function of the shared BladeCenter chassis resources. See Solving shared BladeCenter resource problems. (Trained service technician only) If the microprocessor error LED is lit, replace the microprocessor. See Removing a microprocessor and heat sink and Installing a microprocessor and heat sink. (Trained service technician only) Replace the system-board assembly. See Removing the system-board assembly - BladeCenter HX5 and Installing the system-board assembly - BladeCenter HX5.
The blade server does not turn off.	Verify whether you are using an Advanced Configuration and Power Interface (ACPI) or non-ACPI operating system. If you are using a non-ACPI operating system, complete the following steps: Turn off the blade server by pressing the power button for 4 seconds. See Blade server controls and LEDs. If the blade server fails during POST and the power button does not work, remove the blade server from the bay and reseat it. See Removing the blade server from the BladeCenter chassis and Installing a blade server in a BladeCenter chassis. If the problem remains or if you are using an ACPI-aware operating system, complete the following steps: Check the power-management policies in the operating system for the blade server. (Trained service technician only) Replace the system-board assembly. See Removing the system-board assembly - BladeCenter HX5 and Installing the system-board assembly - BladeCenter HX5.